1/* The contents of this file are subject to the Netscape Public
2 * License Version 1.1 (the "License"); you may not use this file
3 * except in compliance with the License. You may obtain a copy of
4 * the License at http://www.mozilla.org/NPL/
5 *
6 * Software distributed under the License is distributed on an "AS
7 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
8 * implied. See the License for the specific language governing
9 * rights and limitations under the License.
10 *
11 * The Original Code is Mozilla Communicator client code, released March
12 * 31, 1998.
13 *
14 * The Initial Developer of the Original Code is Netscape Communications
15 * Corporation. Portions created by Netscape are
16 * Copyright (C) 1998 Netscape Communications Corporation. All
17 * Rights Reserved.
18 *
19 * Contributor(s):
20 *
21 */
22/**
23	Filename:     slice.js
24	Description:  'This tests out some of the functionality on methods on the Array objects'
25
26	Author:       Nick Lerissa
27	Date:         Fri Feb 13 09:58:28 PST 1998
28*/
29
30	var SECTION = 'As described in Netscape doc "Whats new in JavaScript 1.2"';
31	var VERSION = 'no version';
32    startTest();
33	var TITLE = 'String:slice';
34
35	writeHeaderToLog('Executing script: slice.js');
36	writeHeaderToLog( SECTION + " "+ TITLE);
37
38	var count = 0;
39	var testcases = new Array();
40
41
42	function mySlice(a, from, to)
43	{
44	    var from2       = from;
45	    var to2         = to;
46	    var returnArray = [];
47	    var i;
48
49	    if (from2 < 0) from2 = a.length + from;
50	    if (to2 < 0)   to2   = a.length + to;
51
52	    if ((to2 > from2)&&(to2 > 0)&&(from2 < a.length))
53	    {
54	        if (from2 < 0)        from2 = 0;
55	        if (to2 > a.length) to2 = a.length;
56
57	        for (i = from2; i < to2; ++i) returnArray.push(a[i]);
58	    }
59	    return returnArray;
60	}
61
62	// This function tests the slice command on an Array
63	// passed in. The arguments passed into slice range in
64	// value from -5 to the length of the array + 4. Every
65	// combination of the two arguments is tested. The expected
66	// result of the slice(...) method is calculated and
67	// compared to the actual result from the slice(...) method.
68	// If the Arrays are not similar false is returned.
69	function exhaustiveSliceTest(testname, a)
70	{
71	    var x = 0;
72	    var y = 0;
73	    var errorMessage;
74	    var reason = "";
75	    var passed = true;
76
77	    for (x = -(2 + a.length); x <= (2 + a.length); x++)
78	        for (y = (2 + a.length); y >= -(2 + a.length); y--)
79	        {
80	            var b  = a.slice(x,y);
81	            var c = mySlice(a,x,y);
82
83	            if (String(b) != String(c))
84	            {
85	                errorMessage =
86	                    "ERROR: 'TEST FAILED' ERROR: 'TEST FAILED' ERROR: 'TEST FAILED'\n" +
87	                    "            test: " + "a.slice(" + x + "," + y + ")\n" +
88	                    "               a: " + String(a) + "\n" +
89	                    "   actual result: " + String(b) + "\n" +
90	                    " expected result: " + String(c) + "\n";
91	                writeHeaderToLog(errorMessage);
92	                reason = reason + errorMessage;
93	                passed = false;
94	            }
95	        }
96	    var testCase = new TestCase(SECTION, testname, true, passed);
97	    if (passed == false)
98	        testCase.reason = reason;
99	    return testCase;
100	}
101
102	var a = ['a','test string',456,9.34,new String("string object"),[],['h','i','j','k']];
103	var b = [1,2,3,4,5,6,7,8,9,0];
104
105	testcases[count++] = exhaustiveSliceTest("exhaustive slice test 1", a);
106	testcases[count++] = exhaustiveSliceTest("exhaustive slice test 2", b);
107
108	function test()
109	{
110	   for ( tc=0; tc < testcases.length; tc++ ) {
111	        testcases[tc].passed = writeTestCaseResult(
112	        testcases[tc].expect,
113	        testcases[tc].actual,
114	        testcases[tc].description +" = "+
115	        testcases[tc].actual );
116	        testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
117	   }
118	   stopTest();
119	   return ( testcases );
120	}
121
122	test();
123
124